High-voltage power supply for a picture tube

Details High-voltage power supply for a picture tube High-voltage power supply for a picture tube

1986-12-22

1988-09-27

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

363 21, 315411, H04N 563

Patent

active

047745843

ABSTRACT:
The primary winding of a high-voltage transformer is periodically connected to an operating voltage source at the television line scanning frequency. The secondary winding is subdivided into several component windings which are connected to each other through diodes. A further diode provides the output for the high voltage. A somewhat similar circuit with interposed diodes can provide a center tap and full-wave rectification. A control voltage derived by voltage division from the high voltage is supplied to regulating means for holding the high voltage constant by controlling the width of the driving pulses for the semiconductor switch or by directly controlling the operating voltage connected to the transformer through the semiconductor switch.

REFERENCES:
patent: 3889173 (1975-06-01), Klusmann et al.
patent: 3924172 (1975-12-01), Gregorich
patent: 4172277 (1979-10-01), Pinson
patent: 4210947 (1980-07-01), Koizumi
patent: 4236198 (1980-11-01), Ohsawa et al.
patent: 4316128 (1982-02-01), Shiratsuchi
patent: 4321514 (1982-03-01), Thibodeau et al.
patent: 4330816 (1982-05-01), Imazeki et al.
patent: 4347559 (1982-08-01), Sturgeon
patent: 4371917 (1983-02-01), Bator
patent: 4466051 (1984-08-01), Fitzgerald
patent: 4524411 (1985-06-01), Willis
patent: 4527229 (1985-07-01), Imamura et al.
patent: 4562508 (1985-12-01), Chen et al.
patent: 4692852 (1987-09-01), Hoover
patent: 4728868 (1988-03-01), Ishikawa et al.
patent: 4737853 (1988-04-01), Graves et al.
Peter Knight, RCA Publication, "Television Receiver Power Supply Converter Circuit", Nov. 23, 1981, pp. 1-2.

Affiliated with

Also associated with

Rating

High-voltage power supply for a picture tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-voltage power supply for a picture tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-voltage power supply for a picture tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2400429